Spring-motor for sewing or other machines.



No. 779,382. PATENTED JAN. 3, 1905.

' J. TEEL. SPRING MOTOR FOR SEWING OR OTHER MACHINES.

APPLIOATION FILED JULY 23.1903 RENEWED DBO. 1,1904.

2 SHEETS-BEER! l j/fi r Inventor Witnesses a (JO/U2 B I i Y \a I I lAttorney No. 779,382. PATENTED JAN. 3, 1905.

' J. TEEL. SPRING MOTOR FO SEWING OR OTHER MACHINES.

APPLIOATION FILED JULY 23.1903. RENEWED DEO.1.1904.

l W A a r; LIL,L;'\

2 SHEETS-SHEET 2,

Inventordo/mle/ UNITED STATES Patented January 3, 1905.

PATENT OFFICE.

JOHN TEEL, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR OF ONE-HALF TOJOHNSON T. HEARE, OF WASHINGTON, DISTRICT OF COLUMBIA.

SPRING-MOTOR FOR SEWING OR OTHER MACHINES- SPECIFIGATION forming part ofLetters Patent No. 779,382, dated January 3, 1905.

Application filed July 23, 1903. Renewed December 1, 1904. Serial No.235,088.

To all whom it may concern): Be it known that I, J OHN TEEL, a citizenof the United States, residing at Washington, in the District ofColumbia, have invented cer tain new and useful Improvements in Spring-Motors for Sewing or other Machines; and I do declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention is an improved spring-motor adapted for use in runningsewing-machines and othermachines; and it consists in the peculiarconstruction and combination of devices hereinafter described andclaimed.

In the accompanying drawings, Figure 1 is a front elevation of asewing-machine provided with my improved spring-motor. Fig.

- 2 is a sectional view taken on the plane indicated by line a a ofFig. 1. Fig. 3 is a similar view taken on the line b b of Fig. 1. Fig. 4is a similar view taken on the line c of Fig. 1. Fig. 5 is a detailsectional view taken on the line (Z (Z of Fig. 1.

In the embodiment of my invention here shown Iprovide a pair ofbracket-hangers 1, which are attached to the under side of thesewing-machine table, each of which brackets comprises a horizontal arm2 and a vertical depending arm 3, the former being secured to theunderside of the machine-table by screws, bolts, or other suitabledevices and the latter being provided with a vertical slot 4.

The casing of my improved spring-motor comprises a pair of outer plates5 6, which are preferably circular and provided on their upper and lowersides with lugs 7 8 and an intermediate plate 9. The outer plates 5 6are secured together by appropriately-spaced bolt-rods 10, of which anysuitable number may be used, four being here shown, and the intermediateplate is supported by bolt-rods 11,

which are here shown as disposed in line radially with the bolt-rods 10.The upper lugs 7 of the outer plates bear against the depending arms 3of the hanger-brackets and are'secured thereto by bolts 12, which areadjustby spring-pressed pawls 17, with which the wheel is provided.Hence the said gearwheel 15 can rotate only in one direction on theshaft 13. The said shaft is further provided on the outer side of thegear-wheel 15 with a friction brake-wheel 18.

A shaft 19, which is the main shaft of my improved motor, is journaledin bearings at the centers of the plates 5, 6, and 9. A beveledgear-wheel is fast on the inner end of said shaft and is engaged by abeveled pinion 21, which is fast on a shaft 22, that is journaled in'abearing 23, secured on the outer side of the plate 5. A crankshaft 24 isprovided which may be attached to and unshipped from the shaft 22 atwill to enable the latter to be turned manually in order to rotate theshaft 19. A spur-gear 29 is fast on the shaft 19 and engages the pinion14 of shaft 13. A broad pinion 26 is also fast on the shaft 19 and isdisposed between the spur-gear 29 and the plate 9. A plurality ofspringshafts 27 are orbitally arranged with reference to the shaft 19and are suitably spaced therefrom and have their hearings in the plates6 and 9. Each of the said spring-shafts 27 is provided with a spur-gear28, which engages the broad pinion 26. Coil-springs 29, which correspondin number with the shafts 27, have their inner ends secured to the saidshafts and. their outer ends secured to the tie-bolts 11, which securethe plate 9 to the plate 6.

It will be understood from the foregoing that by turning the shaft 20 inthe appropriate direction on the crank-shaft 22 the springs 29 may bewound and that the reaction of the said springs causes the spur-gears 28to revolve in one direction, and said spur-gears being in engagementwith the broad pinion on the shaft 19 said shaft is hence turned by thepower of the springs to cause the shaft 13 to rotate, the latter shaftbeing geared to the shaft 19 by the gears 29 14.

The fly-wheel or band-wheel 30 of the sewing-machine is carried by astub-shaft, as is usual, and I provide a pinion 31, which rotates withthe said band-wheel and is engaged by the spur-gear 15, as shown inFig. 1. Hence the-power of the spring-motor may be communicated to thesewing-machine to operate the latter, as will be understood.

A shaft 32 has its bearings in the machinestandard 6 and in ahanger 33,which is bolted or otherwise suitably secured to the depending lug 8 ofthe plate 5. The said shaft has at its outer end an arm 34, which isprovided with a brake-shoe 35, that bears on the periphery of thefriction brake-wheel 18. A spring 36 (which is here shown as acoil-spring) on the shaft 32 keeps the brake-shoe in engagement with thebrake-wheel, and its power is sufiicient to prevent the motor fromrunning. At the inner end of the shaft 32 is a pedal 37. The operatorplaces one foot on the pedal and by turning the shaft 32 against thetension of the spring 36 releases the friction-shoe from the wheel 19 toenable the motor to operate and to drive the machine at the desired rateof speed.

Within the scope of my invention I may dispense with the gears 20 21 andcrankshaft 22 to wind the springs of the motor and substitute therefor agear driven by the treadle of a sewing-machine, I do not limit myself inthis particular.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

1. In a spring-motor, the combination of a driven shaft, a counter-shaftgeared thereto, a gear loose on the counter-shaft, a frictionbrake-wheel revoluble with the loose gear, a ratchet-wheel fast on thecounter-shaft, a pawl carried by the loose gear and engaging theratchet-wheel, a spring-actuated brake device normally engaging thebrake-wheel, and means to release said brake device therefrom,substantially as described.

2. A motor having a revoluble shaft provided with a pinion, and meanswhereby it may be rotated, a plurality of shafts disposed orbitally withreference to the first-mentioned shaft and each having a gear engagingthe pinion thereof, springs connected to said orbitally disposed shaftsand simultaneously wound by the rotation thereof in one direction by thefirst-mentioned shaft, a countershaft geared to the first-mentionedshaft and driven thereby in one direction, a wheel loose on thecounter-shaft, a pawl carried by said wheel, a ratchet-wheel fast to thecountershaft and engaged by the pawl, and means to control the rotationof the loose wheel with the counter-shaft, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOHN TEEL. Witnesses:

J. C. WILLSON, L. WENTZELL.

